I'm keeping Bramble and Lily indoors tomorrow. I doubt if Lily will be bothered, but Bramble already seems a bit unsettled, and has wandered around a few times, I think looking for Clio.
Actually, I think Bramble looked a bit nervous when she saw the carrier, it may have reminded her of her last vet visit, after which she wouldn't come indoors for months, so I think I should play safe.